Finding the Fourth Proportional to 83,722.82, 115,409.48 and 51,397.74

Step by Step Solution

1. Step 1: Write the proportion equation
   83,722.82 : 115,409.48 = 51,397.74 : x
2. Step 2: Convert to fraction form
   83,722.82/115,409.48 = 51,397.74/x
3. Step 3: Cross multiply
   83,722.82x = 115,409.48 × 51,397.74
4. Step 4: Simplify right side
   83,722.82x = 5,931,786,189.59
5. Step 5: Solve for x
   x = 5,931,786,189.59/83,722.82
6. Step 6: Final answer
   x = 70,850.30